Hi there!
Really awesome and so much useful mod!
But the problem is that after updating game and mod to the latest versions (not sure what exactly causes this problem) after a long period without Factorio I face the following error on mods initialization stage:

32.253 Loading mod beltlayer 0.6.4 (data-updates.lua)
32.386 Error ModManager.cpp:1514: Не удалось загрузить мод "beltlayer": beltlayer/data-updates.lua:2: beltlayer/prototypes/bpproxies.lua:9: attempt to index local 'belt_animation_set' (a nil value)
stack traceback:
beltlayer/prototypes/bpproxies.lua:9: in function 'extract_sprites'
beltlayer/prototypes/bpproxies.lua:130: in function 'make_splitter_proxy_sprites'
beltlayer/prototypes/bpproxies.lua:161: in function 'make_splitter_proxy'
beltlayer/prototypes/bpproxies.lua:169: in main chunk
[C]: in function 'require'
beltlayer/data-updates.lua:2: in main chunk
stack traceback:
[C]: in function 'require'
beltlayer/data-updates.lua:2: in main chunk
32.388 Loading mod core 0.0.0 (data.lua)
32.611 Checksum for core: 3692526182
32.687 Error ModManager.cpp:1514: Error in assignID: recipe-category with name 'crafting' does not exist.

And here's my mods-list:
https://dropmefiles.com/Ok9hx

Can You help me to fix it?

I got the same error. Would be very nice if you can fix this - your mod is extremley helpful :-)

Same error here. Modlist: https://mods.factorio.com/mod/multiplayer_extreme_modpack/downloads
(at the moment added as conflict until it is solved :))

@DrAwesome: you have two conflicts, one with 5-Dim's Transport, and another one is a bug in Belt Brush. I can fix the first but not the second, it would have to be fixed in Belt Brush.

@skiron: If neither of those mods are ones you have installed, you likely have another conflict. Please post your mod-list.

@Sadawys: I haven't looked at your mod list yet to see which might be introducing splitters using the outdated graphics format, but I'll have a look a bit later.

@DrAwesome: you have two conflicts, one with 5-Dim's Transport, and another one is a bug in Belt Brush. I can fix the first but not the second, it would have to be fixed in Belt Brush.

Yep, deactivation of these two mods helped! Thank You very much!

@therax
Thanks for your response and time. I will try to give you in the meantime the correct error log.

55.743 Loading mod beltlayer 0.6.4 (data-updates.lua)
55.767 Error ModManager.cpp:1514: Fehler beim Laden der Mod „beltlayer“: beltlayer/data-updates.lua:2: beltlayer/prototypes/bpproxies.lua:9: attempt to index local 'belt_animation_set' (a nil value)
stack traceback:
beltlayer/prototypes/bpproxies.lua:9: in function 'extract_sprites'
beltlayer/prototypes/bpproxies.lua:59: in function 'make_transport_belt_proxy'
beltlayer/prototypes/bpproxies.lua:67: in main chunk
[C]: in function 'require'
beltlayer/data-updates.lua:2: in main chunk
stack traceback:
[C]: in function 'require'
beltlayer/data-updates.lua:2: in main chunk

Was it helpful, or do you need additional information?

Thanks, the mod list was helpful. I didn’t realize that Yuoki Engines adds it’s own belts. A fix is on the way. :)

Nice, thank you!

Should be fixed now in v1.0.0.

Hm. unfortunately I update your mod but I get another error now :(

141.542 Crop bitmaps.
141.787 Parallel Sprite Loader initialized (threads: 3)
142.390 Error AtlasSystem.cpp:1529: The given sprite rectangle (left_top=0x0, right_bottom=64x64) is outside the actual sprite size (left_top=0x0, right_bottom=32x32).
If this is being used as an icon you may need to define the icon_size property.: boblogistics/graphics/icons/black-splitter.png; mods: beltlayer
142.698 Initial atlas bitmap size is 16384
142.700 Created atlas bitmap 2048x1312 [icon, not-compressed, mipmap, linear-minification, linear-magnification, linear-mip-level]
142.706 Texture processor created (2048). GPU accelerated compression Supported: yes, Enabled: yes/yes. Test passed. YCoCgDXT PSNR: 35.83, BC3 PSNR: 33.82
142.766 Parallel Sprite Loader initialized (threads: 3)
143.066 Sprites loaded
143.103 Generated mipmaps (5) for atlas [0] of size 2048x1312
143.103 Custom mipmaps uploaded.
143.107 Custom inputs active: 54
143.109 Factorio initialised
143.129 Mods to disable:Fehler beim Laden der Mods: The given sprite rectangle (left_top=0x0, right_bottom=64x64) is outside the actual sprite size (left_top=0x0, right_bottom=32x32).
If this is being used as an icon you may need to define the icon_size property.: boblogistics/graphics/icons/black-splitter.png

Should be fixed in v1.0.1.

Hm now it is again another error :)

52.807 Error ModManager.cpp:1514: Fehler beim Laden der Mod „beltlayer“: beltlayer/data-updates.lua:2: beltlayer/prototypes/bpproxies.lua:109: attempt to index local 'layers' (a nil value)
stack traceback:
beltlayer/prototypes/bpproxies.lua:109: in function 'make_underground_belt_sprites'
beltlayer/prototypes/bpproxies.lua:133: in function 'make_underground_belt_proxies'
beltlayer/prototypes/bpproxies.lua:142: in main chunk
[C]: in function 'require'
beltlayer/data-updates.lua:2: in main chunk
stack traceback:
[C]: in function 'require'
beltlayer/data-updates.lua:2: in main chunk
52.809 Loading mod core 0.0.0 (data.lua)
53.127 Checksum for core: 3692526182
53.184 Error ModManager.cpp:1514: Error in assignID: recipe-category with name 'crafting' does not exist.

Do you need something additional from me? :)

btw. love the idea of the mod :)